ref: 52549a2648ebf58b4d31fae7290ad5651638046c
dir: /tests/libc/execute/0019-strncat.c/
#include <assert.h> #include <stdio.h> #include <string.h> /* output: testing test1 test2 test3 test4 test5 done end: */ int main() { char *s, buf[40], buf2[40]; puts("testing"); puts("test1"); strcpy(buf, "01234"); s = strncat(buf, "567", 8); assert(s == buf); assert(!strcmp(s, "01234567")); puts("test2"); strcpy(buf, "01234"); s = strncat(buf, "567", 2); assert(s == buf); assert(!strcmp(s, "0123456")); puts("test3"); strcpy(buf, "01234"); memcpy(buf2, "567", 3); s = strncat(buf, buf2, 3); assert(s == buf); assert(!strcmp(s, "01234567")); puts("test4"); strcpy(buf, "01234"); s = strncat(buf, "", 7); assert(s == buf); assert(!strcmp(s, "01234")); puts("test5"); strcpy(buf, "01234"); s = strncat(buf, "", 0); assert(s == buf); assert(!strcmp(s, "01234")); puts("done"); return 0; }